Breaking capacity across voltage — selectivity planning
This MCCB's interrupting rating drops with system voltage: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V. For a 400 V distribution board, the 121 kA figure gives plenty of headroom for most industrial transformer ratings. At 690 V the 17 kA limit is the binding constraint — verify your fault-current study before committing this breaker to a 690 V bus.
Four-pole width at 101.6 mm matches the standard 4-module MCCB footprint on DIN rail or panel-mount adapters. No undervoltage release or shunt trip is fitted — the order code ends in -0AA0, which omits those accessories.